Manufacture of rotary brushes



(No Model.)

B. F. QUINBY.

MANUFACTURE OF ROTARY BRUSHES.

W Patented Jan. 18,1887.

\ former, preferably consisting of a single block of wood'or metal of the form shown, said former UNITED STATES BENJAMIN F. QUINBY, OF BOSTON, MASSACHUSETTS.

MANUFACTURE OF ROTARY BRUSHES.

SPECIFICATION forming part of Letters Patent No. 356,158, dated January 18, 1887.

Application filed August '7, 1886.

To all whom, it may concern.-

Be it known that I, BENJAMIN F. QUINBY, of Boston, in the county of Sufiolk and Stateof Massachusetts, have invented certain Improvements in the Manufacture of Brushes, of which the following is a full, clear, and exact description, reference'being had to the accompanying drawings, making part of this specification, in which- Figure 1 is a plan of the former and clamping device which I employ inlocating and arranging the bristles, &c., in rows preparatory to transferring them to the stock or holder, a portion of the top of the former being broken away. Fig. 2 is a central vertical section on the line a: x of Fig. 1; Fig. 3, an enlarged section of a portion of the device for clamping the bristles when arranged in a row.

My present invention consists in a former on which the bristles, 850., are arranged radially in a' row of uniform thickness; and it also consists in a clamping device for holding said row of bristles, &c., to enable it to be transferred to the stock or holder of the brush, the construction of the aforesaid devices being hereinafter specifically described and claimed.

In the said drawings, A represents the having a horizontal or nearly horizontal rest, a, on which the assorted bristles or other stock are to be arranged radially in a row, a circular central portion,b,for thelarger ends of the bristles, &c., to abut against,a circular guard, 0, surrounding the flag or smaller ends of the same for keeping them from working outward while being arranged in a row, and a distributingcap, 02, for spreadingthe bristles out so that the row formed thereby will be of uniform thickness throughout.

The outer periphery of the rest a has an annular shoulder, 6, formed in its upper edge, v and within this shoulder (before the bristles are placed on the rest) is located a metal ring, h, having two latches, t i, pivoted thereto at points diametrically opposite.

Two bunches of bristles, sufficient to make a row of the desired thickness, are placed on the rest a of the former at points opposite each other. Then the cap dis centered in place and slightly rotated back and forth simultaneously Serial No. 210,273. (No model.)

with a slight pressure downward, which soon levels the bunches down so as to form a con tinuous unbroken row of the same thickness at all points. After the bristles are properly arranged in a row a second ring, is, provided with an annular rubber cushion, Z, is placed thereover, and the two latches i 7; are swung up to lock the rings h together. The office of the rubber cushion is to insure a uniform pressure of the ringsh 70 (which form a clamping device,

B.) upon the interposed row of bristles, 8m,

thereby enabling them to be retained in their arranged radial row while being transferred to the block or holder (not shown) of the brush to be formed. Anumber of pairs of rings, h k, are employed, so that a sufficient number of rows of bristles may be ready to be located in position alternately with Washers on the holder, as fully set forth in an application for patent No. 190,514, filed February 1, 1886, made by me and now pending.

m (seen dotted in Fig. 1) is a recess formed in the inner side of the annular shoulder e for thereception ofa pin, a, Fig. 3,pro jecting down from the under side of thelower ring, h, to keep it from being rotated by the action of the distributing-cap d on the bristles, 8w.

A pin, 1), Figs. 1 and 2, may be employed as a guide to designate the locality of a latch, i, when under the bristles in its unlocked position, said latch being then swung up by introducing a finger under it and passing its hooked end over the upper metal ring, it.

The center of the formeris provided with a hole for the reception of a long pin, 0", which passes down into a corresponding hole in the work bench or table (not shown) on which the former rests, the latter being preferably rotated thereon so that the work of arranging the rowsof bristles may be more conveniently performed.

I claim- 7 1. A former, A, provided with a rest on which the bristles are radially placed and with a circular portion, 1), at its center for their larger ends to abut against, and a circular guard, a, surrounding the flag or smaller ends of the same for keeping them from working outward while being arranged in rows, in combination with acap, d, capable of being rotated so as to evenly distribute the bristles and thereby insure their uniform thickness throughout the row, substantially as and for the purpose set forth.

2. A clamp consisting of a pair of rings, h k,

and a lock for retaining in position the inter- 5. The latches z i, pivoted to the lower ring, 71, in combination with the upper'ring, k, and its elastic ring Z, secured to its under side, as described.

6. The horizontal resta oftheformer A,hav-

ing a continuous annular shoulder, e, at its outer periphery, in combination with the lower 25 ring, h, as and for the purpose set forth.

7. 'The lower ring, h, having a projection on its under side, in combination with the horizontal rest (1, having an annular shoulder, e,

and a recess, m, at its outer periphery, as and 30 for the object stated.

Witness my hand this 2d day ofAugust,1886. BENJAMIN F. QUIN BY.

In presence of N. W. STEARNS, G. F. QUINBY. 

